BLUE LIGHT ABSORBER B-70(LOTSORB B-70) (CAS:Trade secrets)

BLUE LIGHT ABSORBER B-70(LOTSORB B-70)

Lotosrb® B-70 is a high-efficiency blue light absorber that can be used in optical lenses, optical films, optical pressure sensitive adhesives, coatings and polymers. In recent years, LEDs have been widely used in daily life. Because LEDs emit  high-energy blue-violet light, long-term exposure to strong blue light can cause  macular disease in the eyes.

Lotsorb® B-70 is a product specially developed for strong blue light  protection, especially in the long-wave band and visible light absorption range, and the applications that require shielding. It has the following advantages:

1. Blue light shielding:  Strong absorption in the 320nm~440nm range, which can effectively shield   the blue-violet light band in visible light. 

2. Good compatibility with polymers.

3. Low coloring, slightly affect the initial color of the product.

4. Low volatility, can provide superior processability

The recommended dosage would be 0.05% ~ 2%, and the optimal dosage needs to  be adjusted according to industry specifications and actual processing conditions.

Physical Data

Appearance: Slight yellow crystal

Purity:≥99%

Melting Range: >140℃    

Loss on drying: <0.5%

Solubility

Toluene  7g/100ml

EAC   4g/100ml

MEK   12g/100ml

Isopropanol 0.25g/ml

Methanol 0.15g/ml

Ethanol 0.15g/ml

UV Spectrum

Packaging and Handling

Packaging: 10Kg/Carton

Store the product in a cool, dry, well-ventilated area away from incompatible materials. Unless stated, proper storage will permit usage of the product for 12 months from the manufacture date. For additional handling and toxicological information, consult the Material Safety Data Sheet.